Exactly my thoughts when I first read of WASI: conceptually you could now have a WASI runtime ("OS") and an HTML.wasm potentially independently developed and sw

Exactly my thoughts when I first read of WASI: conceptually you could now have a WASI runtime ("OS") and an HTML.wasm potentially independently developed and swappable. And since WASI is a lot smaller surface, it is easier to audit, test, reimplement, etc.